Citazione Stile APA (7a Edizione)

O'Brien, D. M. (2005). Constitutional law and politics (6a. ed.). W. W. Norton.

Citazione stile Chigago Style (17a edizione)

O'Brien, David M. Constitutional Law and Politics. 6a. ed. Nueva York: W. W. Norton, 2005.

Citatione MLA (9a ed.)

O'Brien, David M. Constitutional Law and Politics. 6a. ed. W. W. Norton, 2005.